《飞行控制用无刷直流电动机的优化设计.》.pdf

2004 7 July 2004 30 7 Journal of Beij ing University of Aeronautics and Astronautics Vol. 30 No7 王自强 张 龙 黄燕丹 , 100083) , 100083) : 飞行控制中机电作动系统的发展是全电飞机的重要技术之一, 而 速大功率密度的无刷直流电动机是其中的关键部件. 为解决无刷直流电动机设计 中的非线性优化问题, 提出了使用遗传算法进行优化设计. 为解决无刷直流电动机多 目标优化问题, 采用了多目标函数变量加权法, 将多目标函数变成单目标函数进行优 化计算. 在计算中, 为达到无刷直流电动机全局优化的目的, 采用随机产生离散初始 种群及随机交叉操作和变异操作方法. 但由于采用随机交叉和变异操作, 优化结果始 终是发散的. 为此采用优秀个体保护策略, 加快了优化设计的收敛. 在满足技术要求 的前提下, 通过计算达到了减小电机的体积重量减小转子转动惯量及机电时间常 数提 无刷直流电动机功率密度的目的. : 无刷电机; 电机设计; 永磁式电机; 优化设计; 遗传算法 : TM 302 : A : 2004) Optimization design of brushless DC motor for flight control Wang Ziqiang Zhang Long School of Automat ion Science and Electrical Engineering , Beijing University of Aeronautics and Astronaut ics, Beijing 100083, China) Huang Yandan Beijing Haidan District Post Offi ce Comput er Centre, Beijing 100083, China) Abstract: Development of electromechanical actuat ion system for flight control is one of the most important technologies in the path to allelectric airplane. Brushless DC motor of high speed and high power density is the key in the system. In order to solve the problem of nonliner opt imizat ion , the genetic algorithm was adopted. The meth od of compond target funct ion variable weighting was adopted for solving compond target opt imizat ion problem, and compond target was put into single target . In order to optimize all fields in calculation, the method of discrete group with random, random cross operation and variation operat